Machine for honing and stropping razors.



0. A. MANN L E. GNOBTH'. MACHINE POR HONINGVAND STROPPING RAZORS.

APPLICATION PILE) JULY l0, 1912, 1,059,180.' Patented Apr.15,1913.

3 BHE'BTs-SHBBT 1.

e. A. MANN & E. GNUBTH.

MACHINE FOR HONING AND STROPPING RAZORS.

APPLICATION FILED JULY l0, 1912.

Patented Apr. 15,1913.

s SHEETS-SHEET 2.

C. A.' MANN & E. GNOBTH. MACHINE FOR HONING AND STROPPING RAZORS.

.APPLICATION FILED JULY 10, 1912.

Patented pr. 15, 1913.

3' BHBBTIS-SHEET 3.

.L @tra rari is hun! L osito.

Specification of Letters atent..

Eatentd Apr. 15, 1913.

Application filed July 1G, 1912. Serial No. 708,555. y

To eli whom 1f may concern.:

Be it known that we, @imanes A. MANN and Emi, Gisonirr, `citizens of the United certainv new and useful improvements in hilarhines t'or Honingand Stropping Razors,

'ot wh he following is a specification.

vent-ion relates to machines for hon- Wopping razors and particularly to j ted machines for sach purposes. f

The obgect of our invention is to provide y .a more simple, etiicient and lessexpensive' machine whereby a razor may be honed and stropped with theutinost ease, accuracy and eiiiciency.

Another object of our invention is to provide ineens whereby a uniform bearing is obtained on the stone or strop and the razor is given the much desired diagonal ystroke which is essential in the proper honing and stropping of a' rancia'.

Another object of our invention is to provide a machine of the character described which can be most easily and conveniently handled and operated, being provided with a handle for holding same` and means for clamping the machine to a table or., the likel Another object' of our invention is to promeans whereby the honing stone er strop is al rays broughtinto close contact with the razor and adapts itself to the position in which the razor is, so that an absolutelj uniitorm engagement with theV stone 'is obtained.

',Our invention consists" in .certain novel parts and combinations of parts herein set forth 'and claimed.

.ln the drawings, which .serve to illustrate the construction, application and use oit' .our invention: liligure 1 is a perspective view of our device showing a razor mounted therein in a position to be drawn across the stone;

at the inner side ot same; Fig. 5 is a side rich forni 'part is a vertical crossis a side elevation of our device with a razor mounted therein; Fig. 3 is a crosssection taken on the line 3-3 of Fig. 2g Fig. l is an elevation oi the carriage looking i elevation of the holder which is` 6 is a view of plate.to which the razor holder is pivoted.

section taken through the razor holder; Fig. 8 is a side elevation of the razor holder forming part of the carriage; Fig. .9 is a View showin how the razor is clamped in position on tie razor holder; Fig. 10 illus-l trates how the razor holder is tilted to either side by engagementwith the cams at either end of the mai-n bed or frame of the machine and Fig. 11 is a perspective View of the strop, part being broken away to .show it in action. Fig. 12 is a longitudinal. vertical section taken through the carriage .and wsociated parts in a plane parallel to rod 8. Fig. 13 is a plan View of a fragment of the `trame showing the slipport which carries the sharpening men'iber; Fi 14 is a View of one of the cam fingers s owing the reeesses in the side thereof which a spring engages; and Fig. 15 is a perspective View oi thespring showing the 'extension thereon whichv engages the recesses in the cam fingers. Fig. 16 is a vert-ical sect-ion taken on the line corresponding to line 16-16 of Fig. 8. Fig. 17 is a perspective View .of

In the embodiment of our invention as illustrated and which shows a preferred .construction 1 represents a frame or bed p01'- tionl of our machine having a support 2 mounted thereon which is adapted to receive a sharpening member comprising a honing stone 3 or strop 51. `The bed- 1 is provided with a stiffening rib i through the center thereof and said rib is .provided with eX- tensions .5, said extensions passing through the channel 6 in the support for the sharpening member and preferably being riveted or thickened byy swaging at ,the top t0 hold said l support in position but allowing itt0 .tilt t0 either side, Whichever is required. Fastened at the center of therib are springs 7 "which extend .to either side and bear against the bottom of the supportthus tending to retain the bed2 in its normal position.

A rod or bar Sis provided at one side of the mainframe 1 and extends along the lower portion et same and upon which a carriage .9 is adapted to operate. We also provide'a roller traek'10 at the side of the main frame adjacent said operating rod ,and parallel therewith which is provided with suitable flanges on one side thereof which the rollers 11 of the carriage engage. This roller track is spaced away from the main frame'or bed 1 to form a slot 12 therebetweenyand to form a guiding means for the main carriage, the side of which carriage extends through said slot and operates therein. At the end of the roller track we provide cams or fingers 13 which are adapted to be tilted upon a pivot 1-1. A certain part of the carriage is adapted to engage these cams lsleeve or bushing 23 or fingers 1n order to properly reverse the razor holder at the end of each stroke. These cams are provided with spring catches 15 which enter suitable depressions in the cams and tend to hold them in either one or the other position as, desired.

The carriage 9 comprises the frame 16 formed Ushaped and having a handle 17 at its outer edge, the inner side of said U-shaped frame passing up through the slot 12 in the framev 1. The bottom of the shaped frame is provided' with upwardly xtending ears or lugs between which a placed through 1n AD 1 which the main' rod or bar 8 passes and which forms a suitable bearing' for the carriage. A gear rack 18 is pivoted on a'shaft 58 running through the central part of said U-shaped frame 4and is adapted to engage the cams or fingers 13 below said shaft when the machine is set fo-r honing.v This gear rack meshes at the top thereof with a pinion 19 mount-ed on the pivotedv razor holder 20. The construction of this razor holder 2O forms an important part of our invention and comprises the most essential part for properly and eicientlysharpening the razor.` 1tv is by means of the construction of this holder 20that the razor is given the diagonal stroke with the proper pressure at the proper place and time. T he razor holder is bestshown inFigs. 5 to 8 inclusive. The :razor holder 20 comprises the leaf spring 21 which carries small shafts 22 at its upper ends upon which .are mounted rollers 11. These shafts are joined by means Aof a connecting bar 24 which properly spaces the rollers and retains them in the proper and fixed position with relation. to each other. The `joining of the U-shaped spring by means of the connecting bar is very important as it insures the same or equal pressure o'n each side of the razor blade when in contact or operative engagement with the sharpening member. Mounted in the bottom of the. U-shaped 'le-afspring 21 lis a block 25 which is provided with an upwardly extending pin 26 having ,n spring 27 thereon.v Another U-shaped member 28 is adapted to slide over said pin 2,5 and bearl against the spring 27, the upper edge of said U-shaped member enteringgr'ooves 29 in the plate 30. A clamping -rnemberBl is lprovided on plate 30 and has a downwardly extending pin 32 which is riveted to said 'plate 30 ut is adapted toxform a pivot for said clamping member 31150 that it will turn `31 in its normal posit-ion.

slightly thereon. A leaf spring 33 is fastened to said clamping member 31 and bears at its other end against the side of the plate 30 which tends .to hold said clampin member The p ate 30 is adapted to tiltbackward and forward upon its pivots 30 (as best shownin Figs. 7 and 16) by means of theU-shaped member 28 moving u and down on the spring 27 allowing sai plate 30 to tilt. Tlns tilting of the clamping member 31 is essential when the razor is passing over the stone or strop to give it uniform pressure. In other words when the roller 11 on the spring 21, mounted in the carriage 9, is pulled down by means of it engaging the cam surface 34 on the cam track, the clamping member 31 would also be drawn down therewith if it was not for the fact that the razor engages the sharpening member and the spring 27 in the razor holder yields so as to allow the razor to engage the sharpening member under pressure and still allow the rollers 11 to travel down along the cam surfaces 34. The clamping member 31 is provided with a set screw 35 Awhich is adapted to be screwed down onto the razor shank 36, as best shown in Fig. 9. The bottom of the razor clamping member v31 is inclined as shown at 37 and has holding lugs 38 provid-ed thereon to assist in holding the razor shank in proper position. The inclined surface 37 vprovides for the diagonal stroke as shownT in Fig. 1. A spring'39 is provided on the extension 40 of the clamping member 31 and has a slot t1 to allow the razor shank to enter therein and to form a holding or steadying mea ns for the razor handle 42.

Plates 45 are fastened to each side of the block 25 in the holder and form a casing for said holder, a sleeve or bushing 46 being -placed in said plates and adapted to extend ,through the holder to form a pivot hearing for the holder; a pin or shaft 43 extending through said sleeve into the sides of the U-shaped frame 16 of the carriage.

When the carriage reaches either end of the frame, the cams 13 being placed in the position shown in Fig. 10, engage the lower end of the segmental gear olgear rack 18 thereby tilting it upon its pivot on the shaft 58 and moving it to the position shown in full lines in said figure, the cani surface 44 on the cam 13 being in a position where the top end of the gear rack 18 strikes it thereby stopping it and preventing the razor from swinging too far.,

The operation of the device islas follows:

.The razor is first placed inA the clamping set screw"35..l The cams 1 3 are placed in.-

proper position (as shown in 'rsi 2 and 10) to allow'the proper operation'o the gear' ,rack on the carnage to hone the (razor. The

Lore, ico

operator then g 'me stone. "lhe first thing ,s when the handle 17 is drawn s shown in `Figs. l and the mie-or over that bei' toward 1 2, is that rl the 't cir of oller traci?` 10 thereby toren .g said relic -dcwi'iwardly and tending to tilt the entire holding device downwardly lo 'which it -r'loes to a certain extent. How-` ever, `the yielding ci' the clamping membery 3i allows the rol-ler i1 -to be #forced down-- wardly while the razor is allowed to yield.

with the clamping member 31- thereby producing imiter s. pressure of the razor agaiiist.th.. stone. Il. still further purpose in constructing the holding device as shown is to cause the tresor to engage the stone at the outermost point first thereby tilting the stone `to coniioini'to the position of the razor and always isnrmg a true engagement-of the stone and razor throughout the full'v length of the razor blade. To cause the razor to 'touch the stone atthe outer edge 'first we provide an atl-instable stop sisting ot a plate, best shown in 'F ig. 2, having ears t9 5() and it will be seen from obse'. r'ation or" lFig. 2 that as the holding device is tilted 'that the extension 40 of the clamY member 31 strikes the ear 49 thereby t g clamping member on thel plate 3@ against the pressure ci' the spring` the roller 11 advances under the cam surface and forces the razor hqlder ufarther 'down Athe razor is brought into close engagerncl' "i the sharpening member because. the pressnre oi the razor against the sharpening niei'nher at its outer edge has` ytorce great enough to til. the sharpening member and it up into absolutely uniform engager 'the length ci' he razor blade. Thus it is seen that we `produce a number of essential eli'ects in trie art ci sharpening the razor by constructing the holder and carriage in the manner described. vThe razor holder as constructed produces somewhat of a universal jo it t'orv razor inasmuch as the razor is ylel-dable in several vdirections with a view et' increasing the eiliciency of the machine by regulating and producing the desired cntact of' the razor and sharpening member. E'hese movements which have been described relative to the holder, it is believed, produce' as near as possible the human wrist move-- ment vand maintain the movement with an absolutely uniform pressure on the sharpening member which it is practically impossido even by an expert with the human The stropping device 51 is preferably cony extending side flanges channel e, said channels being the handle 17 of they. and tro, drawing' ers 11 passes under 48 con- 1t with the razor throughout 52 provided at each end with a flanged' adapted `to receive the respective ends of the strop 55 and hold the same in position v'mer 'tlanges 53 and the' flanged tapering channel 54. Vilhis permits the aliges '53 to iit within the upwardly extending flanges 2 of the, Ysupport 2 and its flanged tapering channels 54 to tit out/side ot' said flanges 2 at the ends of said support Q thereby preventing the' s tropping device 51 from moving lengthwise or laterally and holding said device inr position in practically the same incliner' as the stone is held. However, when the machine is used for stropping the cams 13 at each end of the frame must be reversed to the positionv shown by dotted lines in Fig. 12 so thatI the gear rack 1.8 is tilted in the opposite direction when it engages the cams 13.

i' Modilications of our invention may .be made without departing from its spirit or scope, and we do not wish to bc conned to the exact details shown.

What we claim as new and desire to secure by Letters Patent is:

1. Amachine for honing and stropping razors comprising a frame, a sharpening member mounted thereon, a carriage longitudinally slidably mounted on said frame, a razor holder' adapted to oscillate in said on said razor holder, rollers on the ends of said U-shapcd leaf spring, a connecting bar y adapted 'to hold said rollers in fixed relation to each other, means whereby said holder is cscillated automatically at the endof each stroke, a, roller track on said frame which 'said rollersare adapted to engage and means for clamping the'razor in said holder,

substantially as set forth and for the pur-` poses. specified.

2. In a machine for honing and stropping razors, a frame, a sharpening member mounted thereon, a carriage slidably mounted on said Jframe, a razor holder adapted to be oscill'ated in said carriage, means for' .clamping a razor 1n said holder, means whereby'the holder is oscillated automati cally at the end ofeach stroke, a stop. on said carriage provided with ears, and an extension on said oscillating razor holder adapted to engage said ears respectively at the beginning of eachl stroke and to tilt the razor and cause the outer end of the razor to touch the sharpening member irst, substantially as set forth and for the purposes specified. y Y' 3. A machine for honing and stropping razors comprisinga frame, a support on said frame adapted to holda sharpening member to vtilt sidewise, aslidable carriage onV said frame, an oscillating holder on said\ frame adapted to .reverse its position at the end vof each stro-kel of the carriage, a clamping member at the top of said holder adapted to swing on a pivot against the pressure of a spring, ian adjustable stop on the side of said carriage which said clamping member is adapted to engage, thereby causing said razor to tilt and engage said sharpening member at its uterinost edge first and thereby cause said stone to tilt and adjust ,itself to the angle of the razor for the pur- 5. ln a machine for honing and stropping razors, a frame, a sharpening member mounted thereon, a carriage slidably mounted on said frame, a pivotally mounted razor holder adapted to oscillate in said carriage, means for clamping a razor in said razor holder, said means being pivotally mounted, a grooved plate to which said razor holder is pivoted, a U-shaped member engaging the grooif'es of said grooved plate, and a spring exerting pressure on said U-shaped member whereby said holder is adapted to be moved in different. directions, substantiallyT as set.

forth and for the purposes specified.

6.' The combination with a frame, of a sharpening member yieldaloly mounted thereon, a track on said frame, a carriage slidably mounted on said frame and adapted to slide parallel with said track, a handle on said carriage, a. holder mountedon said carriage adapted to oscillate, cam tingeis at each end of said track adapted to engage mechanism on said carriage whereby saidholder is oscillated,rollers on said holder adapted to engage said track and yieldably mounted on said holder, a clamping niember on said holder pivoted thereon and adapted to swing upon its pivot against the pressure of a spring, clamping member .ed thereon for holding the handle of a r said clamping inember having an 4exwnsion at one side thereof adapted to engage a stop mounted on "said carriage when he holder is oscillated-to operate the clamping ineniber on its pivot, substantially as and for the purposes set forth.

7. A machine forv honing and stropping razors 'comprising a frame, a support on said havinir means ino-U frame adapted to hold a sharpening inem-k ber, saidrsiipport being adaptedpto tilt on sard franiega cam track on said frame, a carriage slidably mounted on said frame, a

ipsa-18o holder adapted to oscillate on said carriage and engage said cam track, said holder coniprising a clanipiiig-meinber at the top thereof for clamping a razor, said clamping member being adapted to yield in two directions at right angles to each other in order to give the razor the best and most accurate engagementA with said sharpening member, the yieldable mechanism on said clamping member being covered by means of a U-shaped leaf spring-having rollers at the top thereof adapted to engage said track on. said frame and. thereby pull the entire holder downwardly to assist the yielding means in said holder in producing a uniform pressure and engagement. of the razor on said sharpening member.

S. Iii a machine for honing and stropping razors, a frame, a support on said frame adapted to hold a sharpening member, a carriage slidably mounted on said frame, a cam track on said frame, a holder on said slidable carriage comprising a U-shaped spring, a connecting bar at the top of said U- shaped spring carrying rollers, said rollers being adapted to engage said cam track, and said holder being adapted to oscillate in said carriage, a block at the bottom of said U- shaped spring having a pin at the center thereof extending upwardly, a spring surrounding said pin, a' U-sliaped member mounted on said pin and adapted tb rest on said spring, a plate resting on said U-shaped member, a clamping, member pivotally moiinted on said plate and adapted to swing on said plate,a spring engaging the edge thereof, said clamping member being adapt- Ved to tilt against the pressure of the spring on said block, and means whereby sa'id holder is automatically reciprocated at the end ofeach stroke of the carriage.

9. In a machine for honing and stropping razors, a frame, a' sharpening lmember mounted thereon, a carriage slidably mounted on said frame, a razor holder pivoted on' said carriage and adapted to reverse at the end of each stroke, a track on said frame, al spring on said holder, having means adapted to engage said track, means whereby the outer end of the razon blade is caused to engage the sharpening member first, means whereby said sharpening member adapts itself to the position of the razor blade, means on said razor holder whereby a close engagement of the razor with the sharpening meniber is assured, and a handle for operating -tlie slidable carriage on said frame, substantiall-y as set forth and for the purposes specified. I

1 0. ifi machine for honing and stiropping razors,- comprising a frame, a sharpening member mounted thereon, a longitudinal slidable carriage on said frame, an oscillating holder on said carriage, yieldably mount@ rollers on said holder, arpller track on said iis frame adapted to be engaged by said rollers when said carriage is being operated, a yieldable clamping member pivoted on said holder for clamping a razor, and engaging means on said carriage whereby said pivoted clamping member' is caused to swing upon its pivot in two directions in the same plane and to be tilted in directions at an angle to said plane against the pressure of a spring, substantially as and for the purposes set forth. A,

1l. In combination with a frame, a support for sharpening member adapted to rock on said frame, of a track on said frame,

` a rod parallel with said track, a carriagey mounted on said rod and adapted to slide thereon, a razor vholder mounted on said carriage and adapted to-oscillate when said carriage reaches the end of each stroke, a yieldably mounted roller on said holder adapted to engage said track to bring the razor into operative engagement With the sharpening member, springs suitably mounted on said razor. holder, a clamping member on said razor holder adapted to yieldin different directions and at angles to each other against the -pressure of said springs, substantially as and for the purposes set forth.

l2. A machine for honing. and stropping razors comprising a frame, a sharpening member mounted thereona carriage 'slidably mounted on said frame, a pivotally mounted razor holder adapted to yield in dif- 'ferent planes simultaneously and springs for resisting said yielding' movements of the holder exerting positive pressure thereon in different direct-ions at the same time to produce a human wrist movement, means for turning the razor 'at the end of each stroke, and means for yieldably holding the razor in operative engagement with the `sharpening member, substantially as set forth and for the purposes specified.

13. In a machine for honing and stropping. razors, a frame, a sharpening member, a pivotally mounted support thereon for holding said sharpening member, a pivot.-

ally mounted razor holder adapted to yield in different planes simultaneously, means for turning the razor at the end of -each stroke, a rib-beneath said support, a flat U-shaped spring mounted on said ribl and having its free ends curved and extending upwardly beneath said support -to engage vof the sharpening member and to transversely tilt the blade longitudinally of the sharpening member to' present the cutting .edge of the blade to said member, and means permitting automatic adjustment of the sharpening member in keeping with the endwise tilting of the blade to insure a uniform engagement of the cutting edge throughout the lengt-l1 thereof with the sharpening member.

CHARLES A. MANN. EML GNOETH.

Witnesses OLIVER W. SHERMAN,

HARRY E. TILGHMAN. 

